8687870 has 8 divisors (see below), whose sum is σ = 15638184. Its totient is φ = 3475144.

The previous prime is 8687827. The next prime is 8687873. The reversal of 8687870 is 787868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434384 + ... + 434403.

It is an arithmetic number, because the mean of its divisors is an integer number (1954773).

Almost surely, 2^8687870 is an apocalyptic number.

8687870 is a deficient number, since it is larger than the sum of its proper divisors (6950314).

8687870 is a wasteful number, since it uses less digits than its factorization.

8687870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868794.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 8687870 is about 2947.5192959504. The cubic root of 8687870 is about 205.5753813629.

The spelling of 8687870 in words is "eight million, six hundred eighty-seven thousand, eight hundred seventy".